pip install needs root, so let's specify that
renamed ari-backup-demo to ari-backup-local-demo to be more clear about the kind of example this is
added example host configs for different scenarios
documented the LVMBackup module
added sections for the LVM and ZFS modules
Added rsync_options default setting to fix #5
Merge pull request #4 from robled/master

Added more README documentation, more config file examples, fixed #5